Is it legal to make permanent marking on the grips with a Sharpie or other marker?
My single biggest cause of missed shots with my Driver and Woods is having my grip slightly off (too strong or too weak). Some days after a layoff of a few days or more, my grip is way off and I'm missing off the planet and some days I get it right from the beginning. After a few hits at the range, I kind of dial it in before the round but I want to bypass that process and basically mark the grip for hand placement on a straight shot and then on the course I can work off that to dial in a fade or draw. I've tried it in practice rounds with tape and it works great but I don't think that is legal and I am playing in a tournament this weekend.
Similarly, I have pretty much dialed in different distances with my wedges based on 1/2 and 1/3 swings combined with gripping down 1 or 2 inches. I want to mark my wedge grips at 1" and 2" from the butt end to take the estimating out of this process as well.
Is this legal? Most grips have lines on them already, so I assume I can add my own so long as they don't wipe off easily. Thanks in advance for the input guys.
